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Thread: I just bought a FENIX T1.

  1. #1
    Enlightened LedSanders's Avatar
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    Str I just bought a FENIX T1.


    Still kind of new to the CPF but have been a flash-a-hollic since...

    Just wanted to know if anyone has any advice for rechargeables for this light and where to get them for the best price I have a couple battery chargers that can charge Cr123's so I don't really need a charger just some good rechargeables that won't push 4.7+v for the first minutes of use!

    I live in kind of a rural area and cr123's are hard to find that haven't been sitting on the shelf for years!

    I had a palm Blaze K2 and I put some rechargeable cr123's into it and burnt it out in less than a minute use!
    (alright for a cheap $25 flashlight, but not something I want to do to a $75 flashlight.)
    Last edited by LedSanders; 03-25-2008 at 04:18 AM.

  2. #2
    Flashaholic* WadeF's Avatar
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    Default Re: I just bought a FENIX T1.

    Many here like AW's R123 3.7v's: http://www.cpfmarketplace.com/mp/sho...d.php?t=173892

    I run two in my Fenix T1 with no problems. The T1 can handle a fair amount of voltage thanks to its buck circuit.
    Last edited by WadeF; 03-24-2008 at 09:04 AM. Reason: Link didn't paste in
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  3. #3
    Enlightened LedSanders's Avatar
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    Default Re: I just bought a FENIX T1.

    From the looks of those The ones I have should be alright (3.6v 800mAh)
    Not sure if they are protected though!
    Last edited by LedSanders; 03-23-2008 at 11:16 PM.

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    *Flashaholic* Gunner12's Avatar
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    Default Re: I just bought a FENIX T1.

    The should be fine.

    What brand are they?

  5. #5
    Enlightened LedSanders's Avatar
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    Default Re: I just bought a FENIX T1.

    Not sure they were given to me as a B-Day gift!

    And they are 1000mAh I thought they were 800mAh

  6. #6
    Flashaholic* 1 what's Avatar
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    Default Re: I just bought a FENIX T1.

    I've tested the T1 driver board with DC inputs to 12V
    No problems on the runs I did and I was driving the LED in "maximum" (turbo) mode at the time.
    See:
    http://www.candlepowerforums.com/vb/...d.php?t=186210
    Can't see what you propose causing problems - it's one tough little beast!

  7. #7
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    Default Re: I just bought a FENIX T1.

    http://www.candlepowerforums.com/vb/...=191727&page=2
    Quote:
    Originally Posted by Crenshaw
    hey 47s, when will this be on fenix-store? and whats the price point?

    Crenshaw


    Yep, the Tk10 is real. You can be sure we'll have them
    out the door first Official release date is March 25. Keep a look out
    in the reviews section around that date. We're putting some into the hands
    of some competent reviewers. Price point is around the T1's. It'll be
    a couple bucks more due to increased material costs and the US dollar dropping
    Guns, Cigars & Forced Injection Cars

  8. #8

    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by LedSanders View Post


    Just wanted to know if anyone has any advice for rechargeables for this light and where to get them for the best price I have a couple battery chargers that can charge Cr123's so I don't really need a charger just some good rechargeables that won't push 4.7+v for the first minutes of use!

    I had a palm Blaze K2 and I put some rechargeable cr123's into it and burnt it out in less than a minute use!
    (alright for a cheap $25 flashlight, but not something I want to do to a $75 flashlight.)
    I am not suer what your problem is, maybe some kind of missunderstanding:
    IIRC, the T1 uses a buck circuit, and has no problem with anything below 16V or so total voltage.

    Maybe that Blaze K2 was a direct drive light, but something like that shouldnt happen at all with the Fenix. Just think about it: If it can reduce 7.4V to 3.7V, why not 9.4V?

  9. #9

    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by LedSanders View Post
    Not sure they were given to me as a B-Day gift!

    And they are 1000mAh I thought they were 800mAh
    I'll bet you a half dozen new cells they're not a mAh more than 800.

    Print is cheap. And it sells batteries.

    c_c

  10. #10
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    Default

    these cells are NOT protected, so You will loose one (at least) with the very 1st use.

    When the light starts to SHOW a lesser output, one (at least) is below its safe 3-2.8 Volts and most certainly under its 2.5 Volts where Li-Ios start to get damaged irreversibly.

  11. #11
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    Default Re: I just bought a FENIX T1.

    definitely buy some AW protected RCR's. It's not worth loosing a light like the T1 to inferior cells.

  12. #12
    Enlightened LedSanders's Avatar
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    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by Curious_character View Post
    I'll bet you a half dozen new cells they're not a mAh more than 800.

    Print is cheap. And it sells batteries.

    c_c
    I do have 8 of them my friend thought they would be a good gift but I can tell they are cheep.

    Quote Originally Posted by IMSabbel
    Maybe that Blaze K2 was a direct drive light, but something like that shouldnt happen at all with the Fenix. Just think about it: If it can reduce 7.4V to 3.7V, why not 9.4V?
    no it had a driver board in it I am still not sure if its the bulb or the board that is burnt up.

    PalmBlaze K2

  13. #13

    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by IMSabbel View Post
    I am not suer what your problem is, maybe some kind of missunderstanding:
    IIRC, the T1 uses a buck circuit, and has no problem with anything below 16V or so total voltage.

    Maybe that Blaze K2 was a direct drive light, but something like that shouldnt happen at all with the Fenix. Just think about it: If it can reduce 7.4V to 3.7V, why not 9.4V?
    Buck circuits do have limits. It just so happens that the T1 can (apparently) handle a good amount more than two Li-Ions in series. If you exceed the maximum input voltage for a buck circuit, you'll fry it just as sure as any other driver.

  14. #14
    Enlightened
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    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by yellow View Post
    these cells are NOT protected, so You will loose one (at least) with the very 1st use.

    I have 2 sets of batteries that look just like that, I have been using them in a P3D for at least 6 months without any problems. When I lose turbo mode I charge them, and always use the same 2 together.

    Never had a problem, and they give pretty good output.

  15. #15

    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by TigerhawkT3 View Post
    Buck circuits do have limits. It just so happens that the T1 can (apparently) handle a good amount more than two Li-Ions in series. If you exceed the maximum input voltage for a buck circuit, you'll fry it just as sure as any other driver.
    Well, then the people of the other light were REALLY cheap on the safety margin.

    OTOH, the fenix buck drivers seem to be able to cope with a lot: I remember a review of a p3d where somebody put it on a signal generator with a sawtooth signal, ramping it up to 18V, it was stable all the way up.

  16. #16

    Default Re: I just bought a FENIX T1.

    I always use 650mAh 16340 made by a factory in Guangdong, no brands.
    About $3.
    I am... Flashlight designer, photographer, column writer...
    Check my works in CPFMP!

  17. #17
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    Default

    I definitly dont like the smiley in the title and dont understand why it has been chosen

  18. #18
    Enlightened LedSanders's Avatar
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    Str Re: I just bought a FENIX T1.

    Quote Originally Posted by yellow View Post
    I definitly dont like the smiley in the title and dont understand why it has been chosen
    It got you to come in here even though its not the one I picked I must have hit a different on by mistake!

  19. #19
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    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by IMSabbel View Post
    OTOH, the fenix buck drivers seem to be able to cope with a lot: I remember a review of a p3d where somebody put it on a signal generator with a sawtooth signal, ramping it up to 18V, it was stable all the way up.
    Give them a hint of reverse polarity and they go though

  20. #20

    Default Re: I just bought a FENIX T1.

    Sounds like some bad experience...


    Well, for my part I noticed that in future i will leave my finger away from LiFePo cells.
    Who cares about safe chemistry if they are so much worse in every regard than simple AA NiMh?
    An AW cell lasts for a whole week in my P3D, and those cells were empty on wednesday. Checked again, and they really last only half as long.

  21. #21

    Default Re: I just bought a FENIX T1.

    Quote Originally Posted by IMSabbel View Post
    Sounds like some bad experience...


    Well, for my part I noticed that in future i will leave my finger away from LiFePo cells.
    Who cares about safe chemistry if they are so much worse in every regard than simple AA NiMh?
    An AW cell lasts for a whole week in my P3D, and those cells were empty on wednesday. Checked again, and they really last only half as long.
    Some lights (e.g., Tiablo A8) aren't able to handle 3.7 volt RCR-123 Li-ion cells, and some (e.g., Fenix P1D and P2D) don't give full functionality when they're used. For those lights, LiFePO4 cells can be a rechargeable alternative to primary cells because their lower voltage is similar to a primary cell. I use LiFePO4s in them when I'm home and won't be running them for a long time between charges, and put in primary cells when on an extended trip away from a charger.

    c_c

  22. #22
    Enlightened LedSanders's Avatar
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    Buttrock Re: I just bought a FENIX T1.

    Got em' 2x AW ICR 123
    Hope they are as good as some seem to think!
    Last edited by LedSanders; 03-29-2008 at 12:10 AM.

  23. #23
    Enlightened LedSanders's Avatar
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    Str Re: I just bought a FENIX T1.

    Yeah Its here And already slightly modified clip so it doesn't scratch the light.



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